The Dharma at Big Sur is a composition for solo electric violin and orchestra by John Adams. The piece calls for some instruments (harps, piano, samplers) to use just intonation, a tuning system in which intervals sound pure, rather than equal temperament, the common Western tuning system in which all intervals except the octave are slightly impure. The piece was composed in 2003 for the opening of Walt Disney Concert Hall in Los Angeles and was conducted by Esa-Pekka Salonen. The electric violin solo was performed by Tracy Silverman.
The piece is divided into two movements, titled A New Day and Sri Moonshine, which are intended as homages to Lou Harrison and Terry Riley, respectively. It is scored for 2 bass clarinets, 4 horns, 4 trumpets, 2 trombones, contrabass trombone, tuba, timpani, 4 percussionists (playing vibraphone, glockenspiel, marimba, tubular bells, almglocken, xylophone, 4 small bowl gongs and 10 large tuned gongs, triangle, 2 flower pots, crotales), piano, 2 harps, 2 keyboard samplers, strings, and solo electric violin (6-string instrument with additional low C and F strings). The two harps are tuned in just intonation in B and E, respectively. The piano and the samplers are tuned in B just intonation.